> Banks doing those batch jobs probably had much higher TPS than ethereum.

Yes the platform running in most banks, usually built on what we call "mainframes", is still mind blowing and with incredible performance. Also just one of those CPU is about the price of a house...

Also the requirements I cited is for running an Ethereum mainnet "Layer 1" node. And most "TPS" happens on the layer 2s anyway.

So it is hard to compare technically. But one thing for sure is becoming an active participant in the Ethereum mainnet has a very low barrier. They got rid of the whole intensive "Proof of work" part about 5 years ago. For a full sync node the waste is more at the bandwidth and disk levels.